Home / 160,139.10-220,988.07-88,517.28

Finding the Fourth Proportional to 160,139.10, 220,988.07 and 88,517.28

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Solution

The fourth proportional to 160,139.10, 220,988.07 and 88,517.28 is: 122,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,139.10 : 220,988.07 = 88,517.28 : x
  2. Step 2: Convert to fraction form
    160,139.10/220,988.07 = 88,517.28/x
  3. Step 3: Cross multiply
    160,139.10x = 220,988.07 × 88,517.28
  4. Step 4: Simplify right side
    160,139.10x = 19,561,262,868.85
  5. Step 5: Solve for x
    x = 19,561,262,868.85/160,139.10
  6. Step 6: Final answer
    x = 122,151.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.